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Finding the Fourth Proportional to 635,709.98, 953,460.16 and 209,251.36

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Solution

The fourth proportional to 635,709.98, 953,460.16 and 209,251.36 is: 313,842.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,709.98 : 953,460.16 = 209,251.36 : x
  2. Step 2: Convert to fraction form
    635,709.98/953,460.16 = 209,251.36/x
  3. Step 3: Cross multiply
    635,709.98x = 953,460.16 × 209,251.36
  4. Step 4: Simplify right side
    635,709.98x = 199,512,835,185.82
  5. Step 5: Solve for x
    x = 199,512,835,185.82/635,709.98
  6. Step 6: Final answer
    x = 313,842.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.